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post #1 of 3 (permalink) Old 05-08-2017, 02:39 PM Thread Starter
Join Date: May 2008
Location: Central Texas
Posts: 19
Ambient Air Temp Sensor

My outside air temperature reading is very slow to update. If I park it in a hot parking lot, it will take 20 or 30 minutes to update to the proper temperature. Yesterday, I parked it when the outside temperature was in the 50s. When I got back in to the car the temp was in the mid 80s. I drove nearly 50 miles before it had updated to the proper temperature. I this just the nature of the system, or is something going south, and needs to be replaced?
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post #2 of 3 (permalink) Old 05-08-2017, 03:30 PM
No, Mr. Lemmywinks, No!!!

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Join Date: Jun 2005
Location: Harriman, TN
Age: 54
Posts: 8,291
The 2nd temperature sensor is in the cabin, and is a reference to the one out front, behind the grill.

When the inside temp is hot, or cold, it will read funny until the cabin goes to ~40-80 degrees, then will work normally.

It's inside the satc unit, so it's more insulated than the cabin, so it takes a bit.

The sun beaming on the dash makes it worse.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
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post #3 of 3 (permalink) Old 05-09-2017, 03:27 PM Thread Starter
Join Date: May 2008
Location: Central Texas
Posts: 19
OK That makes sense. It's a black car that lives in Texas. The interior does get hot.
Thanks for your expertise!
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